CN110225589B - Data transmission method, device and equipment - Google Patents

Data transmission method, device and equipment Download PDF

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CN110225589B
CN110225589B CN201810937023.3A CN201810937023A CN110225589B CN 110225589 B CN110225589 B CN 110225589B CN 201810937023 A CN201810937023 A CN 201810937023A CN 110225589 B CN110225589 B CN 110225589B
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resources
resource
normal
potential
base station
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CN110225589A (en
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白伟
缪德山
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Datang Mobile Communications Equipment Co Ltd
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Datang Mobile Communications Equipment Co Ltd
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Priority to EP19761466.2A priority Critical patent/EP3761737A4/en
Priority to US16/977,225 priority patent/US11539480B2/en
Priority to PCT/CN2019/075937 priority patent/WO2019165937A1/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H04W72/1263—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
    • H04W72/1268—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows of uplink data flows
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0003—Two-dimensional division
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1812—Hybrid protocols; Hybrid automatic repeat request [HARQ]
    • H04L1/1819—Hybrid protocols; Hybrid automatic repeat request [HARQ] with retransmission of additional or different redundancy
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1867—Arrangements specially adapted for the transmitter end
    • H04L1/189—Transmission or retransmission of more than one copy of a message
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0044—Arrangements for allocating sub-channels of the transmission path allocation of payload
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0091—Signaling for the administration of the divided path
    • H04L5/0094—Indication of how sub-channels of the path are allocated
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446—Resources in time domain, e.g. slots or frames
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H04W72/1263—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
    • H04W72/1273—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows of downlink data flows
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0003—Two-dimensional division
    • H04L5/0005—Time-frequency
    • H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT

Abstract

The invention discloses a data transmission method, a device and equipment, comprising the following steps: the terminal transmits data to the base station through normal resources; when the base station adjusts the configuration of the normal resources so that the terminal can not transmit data in the normal resources, or when the normal resources are not enough to finish the configured repeated transmission times, transmitting data to the base station on the potential resources, wherein the normal resources and the potential resources are resources which are configured by the base station for the terminal in a semi-static mode and are used for transmitting data, and when the normal resources are not available and the potential resources are not used as third resources of other terminals, the base station and the terminal determine the potential resources which are used for transmitting data and need to be used according to the same mode. By adopting the invention, the base station and the terminal can flexibly perform resource allocation, and when conflict is generated between semi-static resource allocation and dynamic change of resource attributes in URLLC uplink transmission, the potential resources can be used for completing the data transmission, thereby ensuring the reliability of the data transmission.

Description

Data transmission method, device and equipment
Technical Field
The present invention relates to the field of wireless communication technologies, and in particular, to a data transmission method, apparatus, and device.
Background
In the existing URLLC (Ultra Reliable & Low Latency Communication, Ultra high reliability and Ultra Low Latency), for the conflict problem between semi-static resource configuration and dynamic change of resource attributes, the related technical solution is as follows:
if a conflict occurs on the starting resource, the delay is performed according to table 1 below; if a collision occurs on resources that are not the starting one, the data transmission on those resources is abandoned.
Table 1 below shows transmission schemes corresponding to different RV (redundancy version) configurations configured for different repetition times K in the URLLC uplink scheduling-free transmission scheme.
According TO the current standard, through RRC (Radio Resource Control) configuration, for example, K is 4, RV is { 0303 }, a time domain Resource position is { initial OFDM (Orthogonal Frequency Division multiplexing) symbol, the number of OFDM symbols }, the time domain Resource position is defined as one transmission opportunity TO (transmission opportunity), that is, a Resource for completing one retransmission, and K is 4, which means that four TO are required for performing four retransmission. Here TO is typically continuous in the time domain.
As an example, the rows correspond to K ═ 4 in table 1 below. When data arrives before the first TO, the first TO TO the fourth TO can be used for transmission, and therefore the data can be transmitted four times, wherein RV is { 0303 }; when data arrives after the first TO and before the third TO, the third TO TO the fourth TO can be used for transmission, so that the data can be transmitted twice, and the RV is { 03 }; when data arrives after the third TO, no transmission occurs.
Table 1:
Figure BDA0001768087290000021
the defects of the prior art are as follows: when the data arrival time is inconsistent with the resource allocation, the semi-statically configured resources are not enough to complete K times of repeated transmissions, and the uplink transmission of the URLLC is partially cancelled, which affects the reliability of data transmission.
Further, if reliability is TO be improved, dynamic signaling is required TO allocate new resources or TO, which increases signaling overhead and implementation complexity.
Disclosure of Invention
The invention provides a data transmission method, a device and equipment, which are used for solving the problem of unreliable data transmission caused by conflict between semi-static resource allocation and dynamic change of resource attributes in a wireless communication system.
The embodiment of the invention provides a data transmission method, which comprises the following steps:
the terminal transmits data to the base station through normal resources;
when the base station adjusts the configuration of normal resources so that the terminal can transmit data in the unavailable normal resources, or when the normal resources are not enough to finish the configured repeated transmission times, transmitting data to the base station on potential resources, wherein the normal resources and the potential resources are resources which are configured by the base station for the terminal in a semi-static mode and are used for transmitting data, and when the normal resources are unavailable and the potential resources are not used as third resources of other terminals, the base station and the terminal determine the potential resources which are used for transmitting data and need to be used according to the same mode.
Preferably, the third resource refers to a resource dynamically scheduled by the base station to other terminals.
Preferably, the normal resources are resources configured by explicit signaling and enabled by explicit/implicit signaling.
Preferably, the potential resources are resources configured by explicit/implicit signaling, and/or automatically enabled.
Preferably, in the implicit configuration, the configuration is performed by means of N resources immediately following the normal resource in one resource configuration period, where N is a positive integer.
Preferably, in the transmission using the potential resource, if the normal resource is K resource units, when M of the normal resources are not available, J of the potential resources are available, that is, not used as the third resource of other terminals, the potential resource of the previous min { M, J } resource units is used for data transmission.
Preferably, the resource unit may be subframe, slot, mini-slot, etc.
Preferably, the potential resource and the normal resource are FDM (Frequency-Division Multiplexing);
or TDM (Time-Division Multiplexing) between the potential resource and the normal resource;
or a part of the potential resources and the normal resources are FDM, and the other part of the potential resources and the normal resources are TDM.
Preferably, before the terminal performs data transmission with the base station on the potential resource, the method further includes:
the terminal determines the configured potential resources through a pattern;
the pattern is determined according TO the position of the normal transmission opportunity TO occupied by the first transmission and/or the position of the normal resource adjusted by the base station.
Preferably, the pattern is a protocol specification, or a base station is configured to the terminal.
Preferably, the potential resource is in the same configuration period as the normal TO occupied by the first transmission.
Preferably, in the time position, the time interval between the first potential resource and the normal TO occupied by the first transmission is greater than K2, where K2 is a predetermined value.
An embodiment of the present invention provides a wireless communication device, including:
a processor for reading the program in the memory, performing the following processes:
processing data according to the requirement of the transceiver;
a transceiver for receiving and transmitting data under the control of the processor, performing the following processes:
transmitting data to the base station through normal resources;
when the base station adjusts the configuration of normal resources so that data can be transmitted to the base station on potential resources when the normal resources are unavailable or when the normal resources are not enough to finish the repeated transmission times of the configuration, wherein the normal resources and the potential resources are resources which are configured by the base station for a terminal in a semi-static mode and are used for transmitting data, and when the normal resources are unavailable and the potential resources are not used as third resources of other terminals, the base station and the terminal determine the potential resources which are used for transmitting data and need to be used according to the same mode.
Preferably, the third resource refers to a resource dynamically scheduled by the base station to other terminals.
Preferably, the normal resources are resources configured by explicit signaling and enabled by explicit/implicit signaling.
Preferably, the potential resources are resources configured by explicit/implicit signaling, and/or automatically enabled.
Preferably, in the implicit configuration, the configuration is performed by means of N resources immediately following the normal resource in one resource configuration period, where N is a positive integer.
Preferably, when the potential resource is used for transmission, if the normal resource is K resource units, when M of the normal resources are not available, J of the potential resources are available, that is, the potential resource is not used as the third resource of other terminals, the previous min { M, J } resource units are used.
Preferably, the resource unit may be subframe, slot, mini-slot, etc.
Preferably, FDM is adopted between the potential resource and the normal resource;
or TDM between the potential resource and the normal resource;
or a part of the potential resources and the normal resources are FDM, and the other part of the potential resources and the normal resources are TDM.
Preferably, before the terminal performs data transmission with the base station on the potential resource, the method further includes:
the terminal determines the configured potential resources through a pattern;
the pattern is determined according TO the position of the normal transmission opportunity TO occupied by the first transmission and/or the position of the normal resource adjusted by the base station.
Preferably, the pattern is a protocol specification, or a base station is configured to the terminal.
Preferably, the potential resource is in the same configuration period as the normal TO occupied by the first transmission.
Preferably, in the time position, the time interval between the first potential resource and the normal TO occupied by the first transmission is greater than K2, where K2 is a predetermined value.
An embodiment of the present invention provides a data transmission apparatus, including:
a resource determining module, configured to determine a resource used for data transmission, where the resource is a resource that is semi-statically configured by a base station for a terminal to transmit data, and the resource includes a normal resource and a potential resource, and when the normal resource is unavailable and the potential resource is not a third resource of another terminal, the base station and the terminal determine, according to the same manner, the potential resource that is needed to be used for transmitting data;
the data transmission module is used for transmitting data on normal resources; and when the base station adjusts the configuration of the normal resources so that the normal resources are unavailable for transmitting data, or when the normal resources are not enough to finish the configured repeated transmission times, performing data transmission on the potential resources.
Preferably, the third resource refers to a resource dynamically scheduled by the base station to other terminals.
The embodiment of the invention provides computer equipment which comprises a memory, a processor and a computer program which is stored on the memory and can run on the processor, wherein the processor realizes the data transmission method when executing the computer program.
The invention has the following beneficial effects:
in the technical scheme provided by the embodiment of the invention, the terminal transmits data to the base station through normal resources, but when the normal resources are unavailable due to signaling, the data are transmitted to the base station through potential resources. The potential resource is a resource used for transmitting data and determined to be used by the base station and the terminal according to the same mode when the normally configured normal resource is unavailable and the potential resource is not used as a third resource of other terminals, so that the resource configuration can be flexibly performed, and when a conflict is generated between semi-static resource configuration and dynamic change of resource attributes in URLLC uplink transmission, the potential resource can be used to complete the data transmission even if the configured normal resource cannot be used, so that the reliability of the data transmission is effectively ensured, and meanwhile, the configuration is performed without complex dynamic signaling.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic flow chart illustrating an implementation of a data transmission method according to an embodiment of the present invention;
fig. 2 is a schematic flow chart of an implementation of a data transmission method in URLLC in an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of an embodiment of the present invention in which the potential resources and the normal resources are FDMs;
fig. 4 is a schematic diagram illustrating a relationship between the number of times data is actually transmitted and the TO occupied by the first transmission in the embodiment of the present invention;
FIG. 5 is a schematic diagram of the structure of the time-frequency domain locations of the potential resource and the normal resource according to an embodiment of the present invention;
FIG. 6 is a schematic structural diagram of a data transmission apparatus according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of a wireless communication device according to an embodiment of the present invention.
Detailed Description
The inventor notices in the process of invention that:
with the development of mobile communication service demand, many organizations such as 3GPP are beginning to research New wireless communication systems (i.e. 5G NR, 5Generation New RAT) for future mobile communication systems. In the 5G NR system, an important requirement is low-delay and high-reliability communication, and a transmission scheme such as URLLC is presented. In the uplink transmission scheme of URLLC, in order to reduce delay, a scheduling-free scheme is adopted, and in order to increase reliability, a repeated transmission scheme is adopted. In the uplink transmission scheme of the URLLC, resource allocation adopts RRC semi-static configuration or SPS (semi-persistent scheduling), and when the data arrival time is inconsistent with the resource allocation, or dynamic signaling occurs, such as a slot-format information (SFI) configuration signaling for indicating that a slot is uplink, downlink, flexible, and the like, the resource attribute is changed, the uplink transmission of the URLLC will be partially cancelled, which will affect the reliability of data transmission, and if an additional resource is configured by using the dynamic signaling, the complexity of the dynamic signaling will be increased. Therefore, the problem of conflict between semi-static resource allocation and dynamic change of resource attributes in the URLLC uplink transmission scheme needs to be solved, reliable data transmission is achieved, and signaling complexity is reduced.
Based on this, the data transmission scheme in URLLC is provided in the embodiments of the present invention, and the following describes a specific implementation of the present invention with reference to the drawings.
In the description, the implementation from the base station side and the terminal side respectively will be described, and then an example of the cooperative implementation of the two will be given to better understand the implementation of the scheme given in the embodiment of the present invention. Such an explanation does not mean that the two must be implemented in cooperation or separately, and actually, when the terminal and the base station are implemented separately, the problems on the terminal side and the base station side are solved separately, and when the two are used in combination, a better technical effect is obtained.
Fig. 1 is a schematic flow chart of an implementation of a data transmission method, as shown in the figure, including:
step 101, a terminal transmits data to a base station through normal resources;
in the specific implementation of the step, when the terminal transmits data to the base station, the data is transmitted on normal resources, and potential resources are not used; for potential resources between the base station and the terminal, the potential resources are also the third resources between the base station and other terminals, that is, resources dynamically scheduled by the base station to the terminal, and such resources are the most common resource type in LTE.
Step 102, when the base station adjusts the configuration of the normal resources so that the terminal can not transmit data in the normal resources, or when the normal resources are not enough to finish the configured repeated transmission times, transmitting data to the base station on the potential resources, wherein the normal resources and the potential resources are resources configured by the base station for the terminal in a semi-static manner for transmitting data, and when the normal resources are not available and the potential resources are not used as the third resource of other terminals, the base station and the terminal determine the potential resources used for transmitting data according to the same manner.
The third resource refers to a resource dynamically scheduled by the base station to other terminals.
For example, the base station configures K normal resources for transmitting data for the terminal, and configures N potential resources for transmitting data, where the potential resources refer to resources for transmitting data that the base station and the terminal need to use when the normal resources are unavailable and the potential resources are not used as the third resource of other terminals in the same manner.
In the embodiment of the invention, the resources allocated to the terminal by the base station are subjected to priority sequencing, the resources dynamically scheduled to the terminal by the base station are of a first priority, and the resources semi-statically configured to the terminal by the base station are of a second priority; and in the resources with the second priority, the priority ranking is carried out again, the normal resources are in the first priority, and the potential resources are in the second priority. Embodiments of the present invention relate to the use of potential resources. The potential resources for the first terminal may be resources that are dynamically scheduled by the base station for the second terminal to the second terminal. The terminal firstly uses the resource with high priority to transmit data according to the priority, when the base station dynamically schedules the resource of the terminal and the normal resource are not available, for example, the base station informs the terminal that the two resources are not available through signaling, and when the potential resource is available, for example, the potential resource is not used as the resource dynamically scheduled by the base station to other terminals or the normal resource of other terminals, the base station and the terminal can automatically consider using the potential resource.
The configuration of the potential resources is generally configured to the terminal by the base station semi-statically by using RRC signaling. The potential resources may be configured within one resource allocation period or across resource allocation periods.
The use of the potential resource is usually notified without special signaling, but may also be notified by group-common similar signaling to notify the terminal whether to use the potential resource.
In an implementation, the normal resources are resources configured by explicit signaling and enabled by explicit/implicit signaling. For example, the normal resources are configured through DCI signaling and/or RRC signaling. The normally configured resource refers to a resource indicated by means of DCI (Downlink Control Indicator) scheduling, semi-static configuration, and the like, and indicates a specific position including a frequency domain and a time domain.
The potential resources are used for data transmission, and except for the normal resources, some time domain positions are designated on the same frequency domain position and different time domain positions and are used as the potential resources, under the normal condition, the terminal and the base station use the normal resources in a communication mode and cannot use the potential resources, the part of the potential resources can be allocated to the base station and other terminals to be used as a third resource in the communication mode, and only when the normal resources are unavailable due to dynamic SFI signaling and the terminal does not receive the situation that the potential resources are allocated to other terminals by the base station to be used as the third resource, the potential resources can be considered to be used for data transmission.
In a specific implementation, the notification of the potential resource may be implicit or explicit; explicit notification, i.e. indicated by RRC signaling or DCI information, implicit notification may be as follows: the normal resource is followed by N resource units in one resource configuration period, for example, the normal resource is K consecutive slots (or mini-slots), and the potential resource may be N consecutive slots following the K slots. Namely:
in an implementation, the potential resources are resources that are configured through explicit/implicit signaling, and/or automatically enabled.
In implementation, when implicitly configuring, the configuration is performed by means of N resources immediately following the normal resource in one resource configuration period.
In specific implementation, when the potential resource is used for data transmission, the potential resource needs to be started, and two conditions are needed when the potential resource is started, one is that normal resources used for communication between the terminal and the base station are unavailable, for example, the terminal receives a dynamic SFI signaling sent by the base station, and the signaling changes the uplink and downlink attributes of the normal resources, so that the terminal can not use the normal resources for communication any more; secondly, the potential resources are not occupied, and in general, for the potential resources, the priority ratio of the terminal with unavailable normal resources is higher, so if the base station occupies the potential resources, signaling is needed to notify the terminal with unavailable normal resources.
It should be noted that the normally configured resources are not available, possibly because the normally configured resources are reconfigured by new DCI scheduling, semi-static configuration, and the like, and serve as a third resource between the base station and the terminals, so that the normally configured resources are not available to the terminal, for example, an original uplink slot is changed into a downlink slot through dynamic SFI signaling, and then the terminal cannot continue to transmit the uplink PUSCH (physical uplink Shared Channel) on a time domain resource on which the original terminal is to transmit the PUSCH. In implementation, the unavailability of normal resources due to signaling refers to unavailability of normal resources due to dynamic SFI signaling. Meanwhile, in a time window, the terminal does not receive the message that the base station uses the potential resource as the third resource of other terminals, which means that the terminal does not receive the message that the base station allocates the potential resource to other terminals as the third resource.
In a specific implementation, when the potential resource is used for transmission, if the normal resource is K resource units, when M of the normal resources are unavailable, and when J of the potential resources are available, that is, not used as the third resource of other terminals, the terminal may use the previous min { M, J } resource units. The resource unit can be subframe, slot mini-slot, etc.
In specific implementation, FDM is between the potential resource and the normal resource;
or TDM between the potential resource and the normal resource;
or a part of the potential resources and the normal resources are FDM, and the other part of the potential resources and the normal resources are TDM.
It should be noted that FDM is frequency division multiplexing, which is a multiplexing technique that modulates multiple baseband signals onto different frequency carriers and then superimposes them to form a composite signal;
TDM is Time division multiplexing, which is divided according to the Time of transmission signal, and it makes different signals transmitted in different Time, and divides the whole transmission Time into many Time Slots (TS), each Time slice is occupied by a signal.
In the embodiment of the present invention, the potential resource and the normal resource may be frequency division multiplexed, or may be time division multiplexed, or a part of the potential resource and the normal resource may be frequency division multiplexed, and another part of the potential resource and the normal resource may be time division multiplexed.
In a specific implementation, when the terminal determines TO transmit data TO the base station on the potential resource, before the terminal performs data transmission with the base station on the potential resource, the terminal may determine the configured potential resource through a pattern, where the pattern is determined according TO a position of a normal transmission opportunity TO occupied by the first transmission and/or a position of a normal resource adjusted by the base station.
It should be noted that pattern is a resource sequence corresponding TO occupied by the first data transmission.
Specifically, the pattern may be specified by a protocol, or may be configured by the base station to the terminal.
In one implementation, the time interval between the first potential resource and the normal TO occupied by the first transmission is greater than K2, where K2 is a predetermined value.
It should be noted that the time interval between the first potential resource and the normal TO occupied by the first transmission is greater than K2 TO avoid the base station dynamically scheduling other terminals on the first potential resource.
In a specific implementation, the potential resource is in the same TWG configuration period as the normal TO occupied by the first transmission.
It should be noted that the potential resource and the normal TO occupied by the first transmission are in the same TWG configuration period, so as TO avoid confusion of HARQ (Hybrid Automatic Repeat request ) Process ID (Identity).
This procedure is described below as an implementation flow of the combination of the terminal and the base station.
Fig. 2 is a schematic diagram of an implementation flow of a data transmission method in URLLC, as shown in the figure, including:
step 201, the base station configures K normal resource units through DCI signaling and/or RRC signaling;
step 202, the base station configures N potential resource units through signaling or implicit;
step 203, the base station and the terminal perform data transmission on normal resources;
step 204, the base station changes the attribute of the normal resource through signaling, so that part or all of the normal resource is unavailable;
step 205, the terminal determines which normal resources are unavailable according to the signaling for changing the attribute of the normal resources, and stops data transmission on the unavailable normal resources;
step 206, the terminal judges whether the potential resource is available according to the received signaling;
step 207, the terminal judges which potential resources are used according to the unavailable normal resources and the available potential resources;
step 208, the base station and the terminal perform data transmission on the potential resources;
step 209, the base station and the terminal complete data transmission in the whole resource period.
The following is a description of specific examples.
Example 1
According TO the current standard, by RRC configuration, K is 4, RV is { 0303 }, the time domain resource location is { initial OFDM symbol, number of OFDM symbols }, this time domain resource location is defined as one transmission opportunity TO, i.e. a resource for completing one retransmission, and K is 4 means that four TO are needed for four retransmissions. Here TO is generally continuous.
Considering that an uplink packet of a UE (User Equipment) arrives after a first TO and before a third TO in a TWG (scheduling free transmission) configuration period, the UE transmits a PUSCH with RV equal TO0 at the third TO and transmits a PUSCH with RV equal TO3 at the fourth TO, and according TO the current standard, no other transmission is performed in the resource period. And the base station blindly detects the PUSCH, and the PUSCHs with different RVs are detected in the third TO and the fourth TO under the normal condition.
Assuming that there is time resource in the TWG configuration period, the base station explicitly or implicitly notifies the terminal which resources can be configured as potential TO, which means that the resources are not used in normal circumstances, and the potential TO is only used in the case that the previous normal TO cannot be used, the potential TO is not used as the third resource of other terminals, and the base station and the terminal are determined in the same manner, that is, the base station and the terminal both know TO use and how TO use.
And the base station configures the terminal, and after the normal TO, N continuous TO are potential resources.
And the base station blindly detects the PUSCH at the third normal TO, and then knows that the terminal can continue TO transmit the PUSCH at the first and second potential TO, so that the base station cannot call other terminals TO perform uplink data transmission at the time domain positions of the first and second potential TO of the terminal under normal conditions. If the base station does want TO occupy the first and second potential TOs for uplink data transmission TO other terminals, dynamic signaling is needed TO inform the terminal that the potential resources cannot be used because the potential resources are already used as the third resources of other terminals.
In general, the terminal transmits the first PUSCH at the third normal TO and the second PUSCH at the fourth TO, and then uses RV 0 and RV 3 of the first and second potential TO transmission PUSCHs.
Example 2
According TO the current standard, by RRC configuration, K is 4, RV is { 0303 }, the time domain resource location is { initial OFDM symbol, number of OFDM symbols }, this time domain resource location is defined as one transmission opportunity TO, i.e. a resource for completing one retransmission, and K is 4 means that four TO are needed for four retransmissions. Here TO is generally continuous.
Considering that an uplink data packet of a terminal receives dynamic SFI configuration information after transmitting a PUSCH with RV ═ 0 at a first normal TO in a TWG configuration period, so that a plurality of following normal TOs cannot be used any more, for example, the following two normal TOs cannot be used, then the terminal will not transmit any more in this resource period at a third normal TO and a fourth normal TO after the first normal TO and the second normal TO finish transmitting the PUSCH. And the base station blindly detects the PUSCHs, and normally, only the PUSCHs on the first TO and the second TO are blindly detected.
Assuming that there is time resource in the TWG configuration period, the base station explicitly or implicitly notifies the terminal which resources can be configured as potential TO, which means that the resources are not used in normal circumstances, and the potential TO is only used in the case that the previous normal TO cannot be used, the potential TO is not used as the third resource of other terminals, and the base station and the terminal are determined in the same manner, that is, the base station and the terminal both know TO use and how TO use.
And the base station configures the terminal, and after the normal TO, N continuous TO are potential resources.
The base station blindly detects the PUSCH at the first normal TO, and simultaneously, according TO the dynamic SFI signaling, after the terminal finishes transmitting the PUSCH at the first normal TO and the second normal TO, the terminal does not transmit at the third normal TO and the fourth normal TO, and meanwhile, the terminal is known TO continue transmitting the PUSCH at the first potential TO and the second potential TO, so that the base station can not call other terminals TO perform uplink data transmission at the time domain positions of the first potential TO and the second potential TO of the terminal under the normal condition. If the base station does want TO occupy the first and second potential TOs for uplink data transmission TO other terminals, dynamic signaling is needed TO inform the terminal that the potential resources cannot be used because the potential resources are already used as the third resources of other terminals.
In general, after transmitting a first PUSCH at a first normal TO, a second PUSCH at a second TO, a terminal will not transmit at a third normal TO, and at a fourth normal TO, and transmits a PUSCH with RV 0 and RV 3 using the first and second potential TOs.
Example 3
According to the current standard, when a terminal transmits data to a base station, the base station configures resources for the terminal through RRC, and the time domain resource position is { initial OFDM symbol, number of continuous OFDM symbols }; the frequency domain Resource location is a set of Physical Resource Blocks (PRB) allocated according to type 0 or type 1.
The time domain resource location and the frequency domain resource location are defined as a transmission opportunity TO, i.e. one retransmission is completed, for example, K is 4 and RV is { 0303 }, which means that 4 TOs are required for 4 retransmissions. Here TO usually occurs over K consecutive time slots.
If there are 4 normal TOs in a TWG configuration period, and an uplink data packet of the terminal arrives after the first TO and before the third TO in the TWG configuration period, the terminal transmits a PUSCH with RV 0 through the third TO and a PUSCH with RV 3 through the fourth TO, and according TO the current standard, no other data transmission is performed. And the base station blindly detects the PUSCH, and the PUSCHs with different RVs are detected in the third TO and the fourth TO under the normal condition.
Assuming that there are time-frequency domain resources after the third TO in the TWG configuration period, where the time-frequency domain resources may be different from the previously configured time-frequency domain resources, for example, the frequency domain locations are different, and/or the time domain locations are different, the base station notifies the terminal in an explicit or implicit manner, which resources may be configured as potential resources, and after receiving the notification from the base station, the terminal may perform data transmission through the potential resources.
Here, the potential resource means a resource that is not used in a normal case and can be used only in a case where the previous normal resource cannot be used and the base station and the terminal determine that the resource needs to be used in the same manner.
The FDM is between the potential resource and the normal resource will be described with reference to the drawings.
As shown in fig. 3, the potential resource and the normal resource are FDM according to the embodiment of the present invention. There are 4 normal TOs in fig. 3, TO0, TO1, TO2 and TO3, respectively, and 2 potential TOs, Top and TOq, respectively.
As can be seen from fig. 3, the first potential resource, i.e., the time location of Top, appears after the normal TO2, and the frequency domain location is different from that of the normal TO, i.e., the potential resource and the configured resource (normal TO) are FDM.
Since the uplink data packet of the terminal arrives after the normal TO1 and before the normal TO2 in one TWG configuration period, the terminal transmits data TO the base station through the normal TO2, and the base station blindly detects the PUSCH at the normal TO2, and determines that the terminal continues TO transmit the PUSCH through the potential TOp and the potential TOq.
Since the terminal may transmit data via potential TOp and potential TOq, the base station typically cannot invoke other terminals for uplink data transmission on the time-frequency domain resource locations of potential TOp and potential TOq of the terminal. If the base station has to occupy potential TOp and potential TOq for uplink data transmission to other terminals, dynamic signaling is used to inform the terminals that the potential resources cannot be used for data transmission.
In general, after the terminal transmits the first PUSCH at normal TO2 and the second PUSCH at normal TO3, the terminal may transmit the third PUSCH and the fourth PUSCH using potential TOp and potential TOq, respectively, RV 0 and RV 3.
Example 4
According to the current standard, when a terminal transmits data to a base station, the base station configures resources for the terminal through RRC, and the time domain resource position is { initial OFDM symbol, number of continuous OFDM symbols }; the frequency domain resource position is a PRB set allocated according to a type 0 or type1 mode.
The time domain resource location and the frequency domain resource location are defined as a transmission opportunity TO, i.e. one retransmission is completed, for example, K is 4, and RV is { 0000 }, which means that 4 repetitions are required for performing 4 TOs. Here TO usually occurs over K consecutive time slots.
If the uplink data packet of the terminal arrives at different time within one TWG configuration period, the terminal will transmit the PUSCH for the first time on different TOs, and the actual number of transmissions is related TO the TO occupied by the first transmission, as shown in fig. 4.
In fig. 4, if the TO occupied by the first transmission is the 1 st TO, the number of times of actually transmitting data is 4; if the TO occupied by the first transmission is the 2 nd TO, the number of times of actually transmitting data is 3; if the TO occupied by the first transmission is the 3 rd TO, the number of times of actually transmitting data is 2; if the TO occupied by the first transmission is the 4 th TO, the number of times of actually transmitting data is 1.
According TO the current standard, when the terminal transmits data TO the base station, other transmissions are not performed on other resources except for the normal TO. And the base station blindly detects the PUSCH.
Assuming that there are available time-frequency domain resources after the TO occupied by the first transmission in the TWG configuration period, in these time-frequency domain resources, the base station explicitly or implicitly notifies the terminal which resources can be configured as potential resources, and after receiving the notification from the base station, the terminal can perform data transmission through the potential resources.
Here, the potential resource means a resource that is not used in a normal case and can be used only in a case where the previous normal resource cannot be used and the base station and the terminal determine that the resource needs to be used in the same manner.
When the base station configures resources for the terminal, as shown in fig. 5, in one configuration period, the base station configures 4 normal TOs and 5 potential TOs for the terminal. The 4 normal TOs were TO0, TO1, TO2, TO3, respectively, and the 5 potential TOs were TOl, TOp, TOq, TOk, and TOs, respectively.
When an uplink data packet of a terminal arrives at different times within a TWG configuration period, a base station first determines time-frequency domain positions of occupied normal resources and potential resources according TO the TO occupied by first transmission, and then traverses all possible TO occupied TO by first transmission TO obtain a pattern occupied by the resources, wherein the pattern occupied by the resources includes both normal resources and potential resources, as shown in table 2, a second column and a third column in table 2 are respectively pattern1 and pattern 2.
Figure BDA0001768087290000161
TABLE 2
In table 2, if the first occupied TO is TO0, the base station determines not TO use the potential resource, and obtains a pattern1 occupied by the resource as { TO0, TO1, TO2, TO3}, and a pattern2 occupied by the resource as { TO0, TO1, TO2, TO3 }.
In table 2, for example, if the first occupied TO is TO1, the base station determines TO use a potential resource, and obtains a pattern1 occupied by the resource as { TO1, TO2, TO3, TOk }, and a pattern2 occupied by the resource as { TO1, TO2, TO3, TOq }.
Note that TO q2 and TO q3 in table 2 are not shown in fig. 5, and TO q2 and TO q3 can be regarded as TOs at different frequency domain positions at the same time position as TO q.
In table 2, patterns occupied by other resources may be further added, including selecting different potential resources, different potential resource arrangement orders, and the like, which may form a new pattern.
Therefore, when the uplink data packet of the terminal arrives at different times within one TWG configuration period, the base station only needs TO let the terminal know which pattern TO use, and the terminal performs data transmission according TO the TO in the pattern.
The terminal knows which pattern is used for data transmission, and the base station can inform the terminal of the pattern index (number), so that the terminal determines the pattern for data transmission according to the pattern index; the base station may also fixedly select a pattern, such as the pattern1 in table 2, and the terminal selects the pattern1 for data transmission each time.
Example 5
According to the current standard, when a terminal transmits data to a base station, the base station configures resources for the terminal through RRC, the time domain resource position is { initial OFDM symbol, number of continuous OFDM symbols }, and the frequency domain resource position is a PRB set allocated according to a type 0 or type1 mode.
The time domain resource location and the frequency domain resource location are defined as a TO, i.e. one time of repeated transmission is completed, for example, K is 4, RV is { 0000 }, which means that 4 TOs are required for 4 repeated transmissions. Here TO usually occurs over K consecutive time slots.
If the uplink data packet of the terminal arrives at different time within one TWG configuration period, the terminal will transmit the PUSCH for the first time on different TOs, and the actual number of transmissions is related TO the TO occupied by the first transmission, as shown in fig. 4.
According TO the current standard, when the terminal transmits data TO the base station, other transmissions are not carried out on other resources except the normal TO; if the potential resources are used for data transmission, the terminal can know which potential resources are to be used for data transmission after the first transmission.
After the base station blindly detects the PUSCH on the TO occupied by the first transmission, it may determine which potential resources the terminal will use for the subsequent transmission according TO a predefined pattern or configured potential resources, and the base station cannot invoke other terminals TO perform uplink data transmission on the potential resources under a normal condition, so as TO avoid interference between users. If the base station has TO occupy the potential TO the terminal needs TO use TO transmit uplink data TO other terminals, dynamic signaling is needed TO inform the terminal that the potential resource cannot be used.
Since the base station uses the time-frequency domain resource containing the potential resource by dynamically scheduling the terminal, the base station needs TO know that the terminal will enable the potential resource within a time greater than Kx before the terminal first enables the potential resource, and therefore, a time interval between the first potential resource and a normal TO occupied by the first transmission must be greater than Kx in a time position TO avoid that the base station dynamically schedules other terminals on the first potential resource, where Kx is a predetermined value.
In addition, all potential resources must be within the same TWG configuration period as the normal TO occupied by the first transmission TO avoid confusion of HARQ Process ID.
Based on the same inventive concept, the embodiment of the present invention further provides a wireless communication device, a data transmission apparatus, and a computer device, and because the principles of these devices for solving the problems are similar to the data transmission method, the implementation of these devices can refer to the implementation of the method, and repeated details are not repeated.
Fig. 6 is a schematic structural diagram of a data transmission device, which may include:
a resource determining module 601, configured to determine a resource used for data transmission, where the resource is a resource that is configured by the base station for the terminal in a semi-static manner and is used for transmitting data, where the resource includes a normal resource and a potential resource, and when the normal resource is unavailable and the potential resource is not used as a third resource of another terminal, the base station and the terminal determine a potential resource that is used for transmitting data and needs to be used according to the same manner;
a data transmission module 302, configured to transmit data on a normal resource; and when the base station adjusts the configuration of the normal resources so that the normal resources are unavailable for transmitting data, or when the normal resources are not enough to finish the configured repeated transmission times, performing data transmission on the potential resources.
For convenience of description, each part of the above-described apparatus is separately described as being functionally divided into various modules or units. Of course, the functionality of the various modules or units may be implemented in the same one or more pieces of software or hardware in practicing the invention.
When the technical scheme provided by the embodiment of the invention is implemented, the implementation can be carried out as follows.
Fig. 7 is a schematic structural diagram of a wireless communication device, as shown, the device includes:
the processor 700, which is used to read the program in the memory 720, executes the following processes:
processing data according to the requirement of the transceiver;
a transceiver 710 for receiving and transmitting data under the control of the processor 700, performing the following processes:
transmitting data to the base station through normal resources;
when the base station adjusts the configuration of the normal resources so that the normal resources are unavailable for transmitting data, or when the normal resources are not enough to finish the configured repeated transmission times, the base station transmits the data to the base station in the potential resources, wherein the normal resources and the potential resources are resources which are configured by the base station for the terminal in a semi-static mode and are used for transmitting the data, and when the normal resources are unavailable and the potential resources are not used as third resources of other terminals, the base station and the terminal determine the potential resources which are used for transmitting the data and need to be used according to the same mode.
The third resource refers to a resource dynamically scheduled by the base station to other terminals.
In an implementation, the normal resources are resources configured by explicit signaling and enabled by explicit/implicit signaling.
In an implementation, the potential resources are resources that are configured through explicit/implicit signaling, and/or automatically enabled.
In implementation, in the implicit configuration, the configuration is performed by means of N resources immediately following a normal resource in one resource configuration period, where N is a positive integer.
In an implementation, when the potential resource is used for transmission, if the normal resource is K resource units, when M of the normal resources are not available, J of the potential resources are available, that is, the potential resource is not used as the third resource of other terminals, the previous min { M, J } resource units are used.
The resource unit can be subframe, slot mini-slot, etc.
In an implementation, the potential resource and the normal resource are FDM;
or TDM between the potential resource and the normal resource;
or a part of the potential resources and the normal resources are FDM, and the other part of the potential resources and the normal resources are TDM.
In implementation, the terminal determines the configured potential resources through a pattern;
the pattern is determined according TO the position of the normal transmission opportunity TO occupied by the first transmission and/or the position of the normal resource adjusted by the base station.
Specifically, the pattern is a protocol specification, or a base station is configured for a terminal.
In implementation, the potential resource is in the same configuration period as the normal TO occupied by the first transmission.
In practice, the time interval between the first potential resource and the normal TO occupied by the first transmission is greater than K2 at the time position, where K2 is a predetermined value.
Where in fig. 7, the bus architecture may include any number of interconnected buses and bridges, with various circuits being linked together, particularly one or more processors represented by processor 700 and memory represented by memory 720. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 710 may be a number of elements including a transmitter and a transceiver providing a means for communicating with various other apparatus over a transmission medium. The processor 700 is responsible for managing the bus architecture and general processing, and the memory 720 may store data used by the processor 700 in performing operations.
The embodiment of the invention also provides computer equipment which comprises a memory, a processor and a computer program which is stored on the memory and can run on the processor, wherein the processor realizes the data transmission method when executing the computer program. The specific implementation can be seen in the implementation of the data transmission method.
In summary, in the technical solution provided in the embodiment of the present invention, the terminal transmits data to the base station using the potential resource, where the potential resource refers to a resource that is determined to be used by the base station and the terminal according to the same manner when the normally configured resource is unavailable, and the potential resource may be configured explicitly or implicitly.
The scheme is a flexible resource allocation scheme, when the allocated normal resources cannot be used, the data transmission can be completed by using the potential resources, the reliability of the data transmission is effectively ensured, and meanwhile, the complex dynamic signaling is not needed for allocation.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, optical storage, and the like) having computer-usable program code embodied therein.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.

Claims (26)

1. A method of data transmission, comprising:
the terminal transmits data to the base station through normal resources;
when the base station adjusts the configuration of normal resources so that the terminal transmits data to the base station on potential resources when the normal resources are unavailable or when the normal resources are not enough to finish the configured repeated transmission times, wherein the normal resources and the potential resources are resources which are configured for transmitting data for the terminal in a semi-static manner before the terminal transmits data to the base station through the normal resources, and when the normal resources are unavailable and the potential resources are not used as third resources of other terminals, the base station and the terminal determine the potential resources which are needed to be used for transmitting data according to the same manner.
2. The method of claim 1, wherein the third resource refers to a resource dynamically scheduled by the base station to other terminals.
3. The method of claim 1, wherein the normal resources are resources configured through explicit signaling and enabled through explicit/implicit signaling.
4. The method of claim 1, in which the potential resource is a resource configured through explicit/implicit signaling, and/or automatically enabled.
5. The method of claim 4, wherein the implicit configuration is configured by means of N resources immediately following a normal resource in one resource configuration period, wherein N is a positive integer.
6. The method of claim 1, wherein in transmitting using the potential resource, if the normal resource is K resource units, when M of the normal resources are not available, J of the potential resources are available, i.e., not used as a third resource of other terminals, and potential resources of previous min { M, J } resource units are used for data transmission.
7. The method of claim 6, in which a resource unit is a subframe, slot, or slot mini-slot.
8. The method according to claim 1, characterized in that between the potential resource and the normal resource is a frequency division multiplexing, FDM; or
The potential resource and the normal resource are Time Division Multiplexing (TDM); or
A part of the potential resources and the normal resources are FDM, and the other part of the potential resources and the normal resources are TDM.
9. The method of claim 1, wherein the terminal further comprises, prior to data transmission on the potential resources with the base station:
the terminal determines the configured potential resources through a pattern;
the pattern is determined according TO the position of the normal transmission opportunity TO occupied by the first transmission and/or the position of the normal resource adjusted by the base station.
10. The method of claim 9, wherein the pattern is a protocol specification or a base station is configured for a terminal.
11. The method of claim 9, wherein the potential resource is in a same configuration period as a normal TO occupied by the first transmission.
12. The method of claim 9, wherein a time interval between a first potential resource and a normal TO occupied by a first transmission in a time position is greater than K2, the K2 being a predetermined value.
13. A wireless communication device, comprising:
a processor for reading the program in the memory, performing the following processes:
processing data according to the requirement of the transceiver;
a transceiver for receiving and transmitting data under the control of the processor, performing the following processes:
transmitting data to the base station through normal resources;
when the base station adjusts the configuration of normal resources so that data can be transmitted to the base station on potential resources when the normal resources are unavailable or when the normal resources are not enough to finish the repeated transmission times of the configuration, wherein the normal resources and the potential resources are resources for transmitting data configured for a terminal in a semi-static state before the data is transmitted to the base station through the normal resources, and when the normal resources are unavailable and the potential resources are not used as third resources of other terminals, the base station and the terminal determine the potential resources for transmitting data which need to be used according to the same mode.
14. The apparatus of claim 13, wherein the third resource refers to a resource dynamically scheduled by the base station for other terminals.
15. The apparatus of claim 13, wherein the normal resources are resources configured through explicit signaling and enabled through explicit/implicit signaling.
16. The apparatus of claim 13, in which the potential resource is a resource configured through explicit/implicit signaling, and/or automatically enabled.
17. The apparatus of claim 16, wherein in the implicit configuration, the configuration is performed by following N resources from a normal resource in one resource configuration period, where N is a positive integer.
18. The apparatus of claim 13, wherein in transmitting using the potential resources, if the normal resources are K resource units, when M of the normal resources are not available, J of the potential resources are available, i.e., not used as a third resource for other terminals, and potential resources of the previous min { M, J } resource units are used for data transmission.
19. The apparatus of claim 18, wherein a resource unit is a subframe, a slot, or a mini-slot.
20. The apparatus of claim 13, wherein between the potential resource and the normal resource is FDM; or
TDM is arranged between the potential resource and the normal resource; or
A part of the potential resources and the normal resources are FDM, and the other part of the potential resources and the normal resources are TDM.
21. The apparatus of claim 13, wherein the terminal further comprises, prior to data transmission on the potential resources with the base station:
the terminal determines the configured potential resources through a pattern;
the pattern is determined according TO the position of the normal transmission opportunity TO occupied by the first transmission and/or the position of the normal resource adjusted by the base station.
22. The apparatus of claim 21, wherein the pattern is a protocol specification or a base station is configured for a terminal.
23. The apparatus of claim 21, wherein the potential resource is within a same configuration period as a normal TO occupied by a first transmission.
24. The apparatus of claim 21, wherein a time interval between a first potential resource and a normal TO occupied by a first transmission in a time position is greater than K2, the K2 being a predetermined value.
25. A data transmission apparatus, comprising:
a resource determining module, configured to determine a resource used for data transmission, where the resource is a resource configured semi-statically for a terminal to transmit data before transmitting data, and the resource includes a normal resource and a potential resource, and when the normal resource is unavailable and the potential resource is not a third resource of another terminal, the base station and the terminal determine, according to the same manner, the potential resource used for transmitting data that needs to be used;
the data transmission module is used for transmitting data on normal resources; and when the base station adjusts the configuration of the normal resources so that the normal resources are unavailable for transmitting data, or when the normal resources are not enough to finish the configured repeated transmission times, performing data transmission on the potential resources.
26. A computer device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor implements the method of any one of claims 1 to 12 when executing the computer program.
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